class NumberFormat {
  Map<String, String> defaultFormats = {
    "0": "General",
    "1": "0",
    "2": "0",
    "3": "#,##0",
    "4": "#,##0.00",
    "9": "0%",
    "10": "0.00%",
    "11": "0.00E+00",
    "12": "# ?/?",
    "13": "# ??/??",
    "14": "mm-dd-yy",
    "15": "d-mmm-yy",
    "16": "d-mmm",
    "17": "mmm-yy",
    "18": "h:mm AM/PM",
    "19": "h:mm:ss AM/PM",
    "20": "h:mm",
    "21": "h:mm:ss",
    "22": "m/d/yy h:mm",
    "37": "#,##0 ;(#,##0)",
    "38": "#,##0 ;[Red](#,##0)",
    "39": "#,##0.00;(#,##0.00)",
    "40": "#,##0.00;[Red](#,##0.00)",
    "45": "mm:ss",
    "46": "[h]:mm:ss",
    "47": "mmss.0",
    "48": "##0.0E+0",
    "49": "@",
  };
}
